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Wierd issue with temp gauge!

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Another day another issue! Ok so driving today car was fine until it got up to temp, then started struggling on boost again! So just now I've re adjusted the fuel pressure it was low! About 30 psi or less! So ive cranked it up to 40psi for now but just took it for a test drive and all was good boosting well while warm, then noticed the temp gauge was going down when I was accelerating!? So I stopped checked everything that I could while I was on the side of the road and all seems normal!? It does the same thing in reverse and neutral!? Any ideas/similar problems/solutions? Big thanks!

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might be your thermostat stuck open? and while you start driving the water pump is pumping the water quicker and cooling it down?

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Does that explain why it would get up to temp normally then go down with the acceleration? And is this a bad thing? Possible engine damage?

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If it is the thermostat its not that big of a deal, it will just use more fuel. Usually that is the cause but how long after driving does it go back down? And does the needle drop or does it just go down slowly as if it was warming up?

 

If it is the thermostat its not that big of a deal, it will just use more fuel. Usually that is the cause but how long after driving does it go back down? And does the needle drop or does it just go down slowly as if it was warming up?

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Goes down roughly in time with the acceleration, and back up the same, so probably thermostat? Expensive part? Just seems like a very odd thing for it to do...

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Should cost under $30 if you change it yourself. When the temp is down check to see how hot the heater is compared to when it's normal. That will tell you straight away.

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dont trust the stock gauge for anything

get a aftermarket water temp gauge, that starts flashing warning before the stock gauge starts to even move toward hot

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dont trust the stock gauge for anything

get a aftermarket water temp gauge, that starts flashing warning before the stock gauge starts to even move toward hot

Yeah stock temp gauge tells you it's overheating after it's already boiled over.

 

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Someone else's issue now, sold it last week, told the guy about the issue and he didn't care, up to him what he does with it now, glad to get rid of the bag of issues that car had!

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